Support Policy

An 800 number is provided for software support. If ETF is not functioning properly or there is an installation problem, please feel free to call (800) 301 1423 or email to doug@etfacoustic.com. Chances are that you question will be answered in the software support pages linked below.

The demo download provides a instructions on how to test ETF for operation with your computer. These instructions appear when the demo program is run.

RS analogue SPL meter calibration file

ETF5.x Example Room Project

Software Support

To All New Users

Software Overview

Audio Measurement Basics

Low Frequency Room Response

High Frequency Room Behavior & Mirror Trick

Ambience & Direct Sound